Shuttle



w. L. HALL Nov; 1, 1932.

SHUTTLE Filed Sept. 6, 1950 A TTORNEYS.

Patented Nov. 1, 1932 UNITED STATES PATENT I mes wAsP ING'roN L. HALL, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR. TO JAME Pr.

IBILLING'ION COMPANY, or PHILADELPHIA, PENNSYLVANIA, A conPonArIoN or PEN SYLVANIA SHUTTLE Application filed September 6, 1930. Serial No. 480,120.

This. invention in general relates to shuttles'of the type employed in textile industries, having for itsobject the provision of certain desired improvements in a shuttle of the kind indicated, with a view to a more eflicient shuttle while effecting a substantial economy in manufacturing and operating expenses connected therewith.

c A more particular object is toprovide in a shuttle, a shuttle threading block of comparatively simple and inexpensive constructionespecially adapted for preventing the slipping or backing out of the threadfrom the shuttle while in action.

Another object is to provide an automatic shuttle threading block which may be stamped or pressed out of sheet metal, and of a design and construction eliminating superfluous weight, while insuring against a weakening or cutting away of the shuttle body hitherto liable in conventional types of shuttles.

Additional objects and advantages of the design, construction, arrangement and adapdetails hereinafter set forth when taken in connection with the accompanying drawing in which l Fig. 1 is a fragmentary top plan'view of abobbin-containing shuttle-to which my invention has been operatively applied;

Fig. 2 is a transverse sectional view taken on line 22 ofYFig. 1; V

F ig. '3 is a side elevational View of the automatic shuttle threading block as it appears disengaged from the shuttle body;

Fig. 4 is a perspective view of the automatic shuttle threading'block; 1

Fig. 5 is an' end elevational viewof the Fig. 6 is a fragmentary top plan view of the shuttle with my novel shuttle threading block removed. i

For the purpose of illustrating my inven tion I have shown in the accompanying draw: ing one form thereof which is at present preferred by me, since the same has been found in practice to give SLlJlSffiCtOIY' and reliable results, although it is tobe understood that the Various instrumentalities of which my tation of parts will appear more fully in the invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and or ganization of the instrumentalities as'herein shown and described.

In the drawing wherein similar characters of reference indicate corresponding parts-in the preferred form of the invention, A deslgnates a conventional type of shuttle having the usual longitudinal recess or opening 1, wherein a bobbin 2 is shown which may be secured by any of the attachments (not shown) forming'apart of the present day shuttles. I i i i A In one end 3 of the body portion 4 of the shuttle A I have formed an irregular-shaped chamber or recess 5 in which'my automatic shuttle threading block B is adapted to be detachably inserted, being fastened therein by a screw or bolt 6 as shown in Figs. 1' and 2.

The chamber or recess 5 comprises a main countersunk'well or pocket 7 defined by a ledge 8 at one end, an end wall 49 having a sloping portion at another end, and a-pair of laterally opposed walls 9 and 10 respectively, the-wall 9having a shoulderlO with two small hook-accommodating sockets or holes 11. The wall 10 also is formed with a shoulder 12 having a notchor hole 18 to receive an element described hereinaften. A

channel 14 communicating with thechamber 1 is cut through the wall 10 and serves to guide theend of the bobbin thread into the thread outlethole 15 of the shuttle Al i An alcove or auxiliary pocket 16 communicates with'the countersunk'well 7.for the reception of certain portions of the shuttle threading block B now to be described and forming an important feature of the present inventi0n.-

My Shuttle threading block is formed'preferably of a stamping of sheet'metal, although it may be cast, molded, machined, etc. and is formed of a body portion 17 bent and folded to provide a substantial fiat base 18, and a P of pp'osed'walls 1920.

The upper portion of the wall 19 as clearly shown in Figs. 2 and 4 is bent at right angles and then flexed downwardly into an arcuate. portion 21 which is arranged adjacent the upper portion of the opposed wall 20, as clearly shown in Fig. 2, for the purpose of providing a thread. guiding channel or groove 22. The said upper portion of the wall 19 as viewed in Fig. 2, has a struck out prong 23, the hooked, end; of whichseated in the notch'l3 formed in: the shoulder-1=2 of the body portion 4. The wall 20, as shownin. n j, is provided ith. abent, over pqrtionor flang i a e la ter beingiiormed with a pair of hooks 27, 28which areadapted to be received in the notches or sockets l 1 i n the lyvall 9 of the body portion 3 of the shuttle As best shown in Figs. 3 and 4, the base 18 sprpv dediwithia'cutrquhpontionior: channel; fiaine g ng w th aih 1e30 IlE HQEWHlLZ the; adjacen edge-3,1; of; wshiehi a t rrbe ng loped fromithesupper partrtothe ase 18 andztermir' nating in a small arcuate: guiding. 11.001;- 32 juataposed theho ez 30, l1e purposaofiwhich willapp ar.h reinafter., I r v 1 A fastening-hole 33.;istoranecl invthe ,wall 9; his-1101,33 reg steringrw thi a. hole: 347; formed; in theiopposediwallfilh. 'Izhnough he-holes 3.3 and; 34:; the screw or; bolt; 61 is. passed, the end)35 -of- -t11Q-screw being Ythreadedly engaged; n: the.body:p0rt 0n 3"ofsthe shuttle-A.

As best shown in Figs. 1 and 2, theaend;36 oft-he bnbliini hread: 37 has been passed thronghithe-guidingmhanml -22,; the hole 30 andrt-hence throughrthe outlet; hole: 1510fi h body; pontianfi ofithflshlltfl mitheing ohselvfldi hal'i arpair; of; pinseiwinare securediinhahody; portion .13 immediate y adj went; the holerla r v i To place-the presentfievicein operation the bobbin-:threath 37 'fromithe; shuttle; 2 is, first carried: to; thev channel; 22 and thence; thrust; downw ardlly past the sloping projecting end 39; of the areu ateporiionfll, which} as shown in ig 3-;and;4ehas;been--er;tendedibeyond the-majon pant ofrthe body-portion 1 7 'o my. shuttle'threadingrblockBg d The hobbin thread 37; isnextscarried;around the: arcuate endtdlg oftlie edge 31% andithen; draavni downwardly; past-,1the small arcuate 110011.32 into {the :small channel EzZfi in ,thebaSe 18 which is formed.betweemthezsaid: arouate hOOk132 andEthe: adj @LGQDtrBdgc: ll] :of; the said base; 18. 'Ilhethreadais: nextzdrawn through the outlet hole 15in the bodyzportion 13. :ofithe shuttle-.A. a

: The 1 aetual; placing of; the; bobbin; thread 37 in position for the operation of.the=shu tt: tle: in-itsusual; functions; can bedone-in a second IblltlhfiS:h6Ifi-bllf described in detail with a View: tonexplainingthe actual :method involved-in put-ting mytshzuttl'e into operation,

'Ilhe shuttle; threading block B 5131 further provided with asmall slotA2=inwhichia portion-sof a small; friction pad A l; which,- may be felt; fabricatedi material,, etc; IlSy secured for:- tensioning the; thread) passing there.-v

through. The shuttle-may; nawrbeplacediin ployedfintlie teXtilei-fndustry involvinga con- 1 siderable expense, it will be seen that any means efiective in'prolonging the lite of shuttles in reducing the wear and tear on same willbe an important factor in reducing expenses in those industries, wherein shuttles otthe present, type ar-.eemployed.

The; present shuttle threading bloclemay he threaded; more readily/than V the convert-- tional, shuttle threading block, by, reasonv oi heeccessibi ity of the thread guiding; ChaIlrnel elements forming part of the threadingbloek which are adapted to coactr in, leading; or permitting the thread to fall, or to\ be: guided'intothe:thread outlet; hole 15-. of the body portionfi o -thashlltt Thearcuate portion 2Lieparticularly adapted toxprevent the backing ou ot-the-tlireacl fromthe shut-- tleor in other; Words-,the' unthreadingot; the. shuttle in operation.vv

My shutt e.- -hr-ead ng; lock is preferably mater metal, suchiasf iron, brass, etc.;,.,al thoughany material suitablefor the purpose he-employed. ltrwillfialso be understood that ,in practicethe ejx;actgsize and, configura tion of allithe. various? details may, be varied Within r as nable imits. without. reducing: the eficiency of the device provided that-the, general proportionsof the; device are; prese ved: vTheopresentshuttlethreading.block may be conveniently struckout ofaqsheetvoi material, bentand folded alongthe. lines in:-

dicatedg. and after, completion, is, simply, I

pressed into the recess 5 and thrustadown wardlyuntilthe base 18, abutszthe flare of the well, or pocket, 7., In this position. thiYfiI'lT ous parts of my. shuttle threadingi-blockiB includi g-the p O 1g- 23 .and,th6, hooks 2Z+ 28 will be found to fall into the recesses provided Y-P lOII .Oftheshuttle A for, their reception. y

I am aware,that,the .inventionymay*be em; I

bodied in; other specific forms without:- departing from the spirit- ;or, essential,- attributes thjereof, and I therefore desire the: present embodiment to be considered in allnrespects. as illustrativeand not; restrictive, reference being had to the app ended-cl aims rather; than to the foregoing description to-indicate'the scope'oftheinvention;

.- Havingthus;described;my--invention what Lelaim asnew and desire to secureby Letters Pat n 1; A A, shuttle; threading block of thekind described: comprising a body PQItlOIlpbQ-Ilt and folded upon; itselfa opmvide. -a;;pa r. -ot

opposed walls, one of said walls having a folded over part carried to a point adjacent the other of said walls to'form a thread guiding channel thercbetween, said first mentioned wall having an integrally formed securing hook, the other of said walls having a flange provided with apair of hooks, and an element on said first mentioned wall formed integrally therewith for preventing the thread from backing out of said shuttle in action, said element consisting of an armate hook disposed adjacent a channel formed in the bottom of said shuttle eye.

2. A device of the kind described, in combination with a shuttle, a shuttle threading block formed of a stamping, said stamping havin a pair of opposed walls each having a hoo for engaging and positioning said shuttle threading block in a recess formed in said shuttle one of said walls having a bent upper portion forming in conjunction with the other of said opposed walls, a thread guiding channel, said thread-guiding channel serving to guide said thread into a thread receiving and thread-tensioning means, and fastening means in said threading block for detachably securing the same to said shuttle.

3. A shuttle threading block formed of a sheet metal stamping and having a chamber containing a thread tensioning instrumentality, said threading block including a bottom having formed integrally therewitha pair of opposed walls, oppositely disposed hooks on said walls, said opposed walls being provided with a thread guiding channeltherebetween, one of said walls having means for preventing the backing out of thread from the shuttle threading blocks while in operation, said meansincluding a slot leading to a thread outlet.

4. A shuttle threading block bent and folded upon itself to provide a chamber, a

thread tensioning instrumentality secured in a slot formed in the body portion of said shuttle threading block, said body portion having a pair of opposed walls, having bent portions provided with oppositely disposed hooks for securingthe said shuttle threading block in operative position in a shuttle, and additional means formed in said body portion, and said opposed walls for guiding a thread and preventing the accidental drawing out of said thread from said shuttle threading block when in operation.

5. A bobbin-containing shuttle of the kind described, comprising in combination a shuttle having a body portion provided with an irregularly shaped recess for the removable reception of a shuttle threading block, said shuttle threadingblock having a chamber formed therein, a friction pad enclosed within said chamber, and oppositely disposed hooks integral with the opposite walls of said shuttle threading block for securing same to said shuttle.

6. A shuttle threading block of the kind described, comprising a sheet metal stamping bent and folded to provide a pair of opposite Walls, one of saidwalls vbeing projected at right angles to the-main portion thereof ice 

